ADNOC is one of the world's largest energy companies measured by both reserves and production. ADNOC has 16 subsidiary companies in upstream, midstream, and downstream stages of production. ADNOC develops both onshore and offshore gas fields. The company operates two oil refineries, Ruwais and Umm Al Nar. ADNOC exports natural gas in the form of liquefied natural gas (LNG) in addition to producing supplies for local electricity and water utilities, to other domestic industries including petrochemicals plants, and for re-injection into reservoirs.

DUBAL owns and operates one of the world's largest aluminium smelters. Built on a 480-hectare site in Jebel Ali, the complex's major facilities comprise a one million metric tonne per annum primary aluminium smelter, a 2,350 megawatt power station (at 30°C), a large carbon plant, casting operations with a capability of more than 1,276,000 metric tonnes per annum, a 30 million gallon per day seawater desalination plant, laboratories, port and storage facilities.

Emirates Aluminium (EMAL) is a joint venture between Dubai Aluminium and Mubadala Investment Company.  It operates a state of the art aluminium smelter complex, which produces high quality metal.

The Municipality of Abu Dhabi has implemented projects aimed at establishing modern infrastructure for the city including bridges, drainage systems, road networks, modern means of transportation and consolidation of comprehensive development projects.

Abu Dhabi Sewerage Services Company (ADSSC) was established in 2005 to collect and treat wastewater discharged from all residential and commercial customers in the Emirate of Abu Dhabi and safely dispose of both solid and liquid waste thereof. ADSSC also provides treated water and bio-solids to the Municipalities for horticulture purposes.

Qatar Petroleum is a state-owned corporation responsible for all phases of the oil and gas industry in the State of Qatar.

Oxy participates in three offshore projects in Qatar: at Idd El Shargi North Dome (ISND), located approximately 50 miles east of the Qatar peninsula; Idd El Shargi South Dome (ISSD), about 15 miles south of ISND; and Al Rayyan (Block 12), located northeast of the Qatar peninsula. For nearly two decades, Oxy has worked in close cooperation with Qatar Petroleum to develop and operate offshore oilfields.

Saudi Basic Industries (SABIC) is one of the largest petrochemical manufacturers in the world.  Seventy percent (70%) of the company is owned by the Saudi Arabian government and the remaining shares are held by private investors in Saudi Arabia and other countries of the Gulf Cooperating Council.  SABIC's product portfolio comprises of: Chemical and Performance Chemicals, Polymers and Innovative Plastics, Fertilizers and Metals.

Al Khafji Joint Operations is owned jointly operated by Aramco Gulf Operations Company (AGOC) and Kuwait Gulf Oil Company (KGOC), operating the Khafji and Hout fields located 40 kilometres offshore of the Kuwait and Saudi Arabia border.

Kuwait Oil Company (KOC) is responsible for the exploration, drilling and production of oil and gas within the State of Kuwait.  They are also involved in the storage of crude oil and delivery to tankers for export.

KNPC was established in 1960 as a shareholder company owned by the government and the private sector.  They are responsible for the oil refining and gas liquefaction industry in addition to the marketing of petroleum products in Kuwait through a chain of filling stations.  KNPC operates three refineries: the Mina Abdullah Refinery, the Mina Al Ahmady Refinery and Shuaiba Refinery.

Established in 1945, the Kuwait Ministry of Public Works (MPW) is the Government body concerned with planning, developing, commissioning and supervising infrastructure developments across the State of Kuwait. In pursuit to achieve the Government’s economic diversification strategy and keeping pace with the nation’s fast-growing population, MPW has made it a priority to upgrade and modernize Kuwait’s infrastructure and other public facilities and services. The Ministry is in charge of major infrastructure developments across various sectors including port development, airport projects, roads and highways, healthcare and others. MPW has handled most of the State’s projects for the construction of buildings and development of infrastructure in Kuwait.

Tatweer Petroleum is a joint venture between National Oil and Gas Authority of Bahrain (NOGA), Occidental Petroleum Corporation (Oxy) and Mubadala Development Company.  In December 2009, Tatweer Petroleum assumed responsibility for the further development of the giant Bahrain Field.

The Ministry is working on the provision of infrastructure in different Wilayats such as internal roads, lighting, beautification and urban development and construction of facilities of various services such as markets, parks and gardens. It has also built slaughterhouses and parking areas in addition to providing wastewater services through the establishment of wastewater stations and drainage systems. The Ministry is also responsible for the development of water resources through water exploration and construction of various types of dams and maintenance of springs and aflaj. It implements technical studies to assess water situation and monitor underground and surface water levels.

Waha Oil Company (WOC) is one of the major national companies engaged in the field of oil & gas production.  They operate several major oil fields in Libya.

Oil and Natural Gas Corporation Limited (ONGC) is an Indian multinational oil and gas company headquartered in Dehradun, India. It is one of the largest Asia-based oil and gas exploration and production companies, and produces around 77% of India's crude oil (equivalent to around 30% of the country's total demand) and around 81% of its natural gas. It is one of the largest publicly traded companies by market capitalization in India.ONGC was founded on 14 August 1956 by the Indian state, which currently holds a 69.23% equity stake. It is involved in exploring for and exploiting hydrocarbons in 26 sedimentary basins of India, and owns and operates over 11,000 kilometers of pipelines in the country. Its international subsidiary ONGC Videsh currently has projects in 15 countries.

Shell is an Anglo-Dutch mutinational oil & gas company headquartered in The Hague, Netherlands.  It is the biggest company in the world in terms of revenue. Shell is vertically integrated and is active in every area of the oil & gas industry, including exploration and production, refining, distribution and marketing, petrochemicals, power generation and trading. They also operate a lot of fields - especially in Oman and a few other countries in the Middle East.